MRC Laboratory and Imperial College Study Links Inflammation to Heart Damage
- Chronic stress and systemic inflammation are linked to structural changes to the human heart, according to a study published in the European Journal of Preventive Cardiology.
- The research team tracked the blood marker glycoprotein-acetyl (GlycA), which serves as a measure for chronic inflammation.
- Study lead Declan O’Regan noted that social factors and psychological well-being showed a surprisingly strong connection to inflammation and heart damage, alongside known risk factors like smoking and...
Chronic stress and systemic inflammation are linked to structural changes to the human heart, according to a study published in the European Journal of Preventive Cardiology. Researchers at the MRC Laboratory of Medical Sciences (LMS) and Imperial College London analyzed health data from approximately 480,000 individuals in the United Kingdom to evaluate how long-term psychological and social pressures affect cardiovascular health over time.
Study links inflammation markers to structural heart changes
The research team tracked the blood marker glycoprotein-acetyl (GlycA), which serves as a measure for chronic inflammation. Investigators also examined detailed heart imaging and genetic data from the participant pool. People whose GlycA levels fell into the highest 20 percent of the study group faced a 43 percent higher risk of experiencing a heart attack or stroke compared to participants with the lowest inflammation scores. Beyond event risks, heart scans revealed distinct physical differences in individuals with elevated inflammation markers. Researchers observed thickened heart walls, smaller heart chambers, and a lower filling of the heart. These structural shifts can progress over many years without producing noticeable symptoms, eventually contributing to heart failure.
Social factors and mental health drive chronic immune activation
Study lead Declan O’Regan noted that social factors and psychological well-being showed a surprisingly strong connection to inflammation and heart damage, alongside known risk factors like smoking and lack of physical exercise. Socioeconomic status and family health situation both correlated with the degree of chronic inflammation detected.
Genetic vulnerability shapes individual responses to lifestyle stress
In addition to environmental and social pressures, genetic factors influence how a person’s body reacts to inflammation-driven damage. The data showed that inherited traits modify individual susceptibility to inflammation-driven damage resulting from different lifestyles. The findings indicate that addressing underlying social and psychological burdens may play a role in preventing silent heart deterioration before acute clinical events occur.